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Try not to lose the context in between the rows. Your equation "int magic = goodYear" means you are inserting the value of goodYear to the magic.
Right after this you compare if magic equals to...

Hello.

I see GregBrannon and Ganeprog have already given you nudges to the right direction but more aid can't hurt right?

int goodYear = month * day * year;
int magic = goodYear;

Might help...